Java trans attr non updating
CICS was developed because batch operating system can execute only batch programs.
CICS programs can be written in COBOL, C, C , Java, etc.
These days, users want information within seconds and in real time.
To provide such quick service, we need a system which can process information online.
CICS allows users to communicate with the back-end system to get the desired information.
Examples of online programs include online banking system, flight reservation, etc.
It has the following characteristics − A CICS program is invoked through a transaction.All processing needs to be done by the application program.IBM terminals consist of the following components − The CRT monitor displays the output or the input fields of the application program.CICS runs as a batch job and we can view it in the spool by issuing the command PREFIX CICS*.There are five major services which are provided by CICS. Following are the services which we will be discussing in detail step by step − Application Programming Services interface with application programs.